I see this is your first post and hope we have not frightened you off! Anyway, Welcome to DiscussCooking, and I hope you return to tell us how you fixed the fish.

Being from the Midwest US, I was not raised eating fish. I think you are brave to have bought the bag of fish, good for you!

I will post a picture of a grocery store where large pieces of dried salted fish were sold. I knew i was not permitted to photograph in this store, so I took several photographs before being busted. It was amazing to me to see people pick up this fish and try to wedge it in their grocery carts. There was no wrapping for this fish. But judging by the large amount of this fish being sold, it is quite popular.

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II will post a picture of a grocery store where large pieces of dried salted fish were sold. I knew i was not permitted to photograph in this store, so I took several photographs before being busted. It was amazing to me to see people pick up this fish and try to wedge it in their grocery carts. There was no wrapping for this fish. But judging by the large amount of this fish being sold, it is quite popular.

This might be the same salt cod that is sold in little wood boxes in our stores here for a whole LOT of money--$8/12 oz. I was looking for it to make the French dish, brandade.
I think in Spanish it would be bacaolo.

If I am picturing what the OP is asking about, these are cellophane bags of small/tiny dried fish or possibly shrimp.

Just wanted to add a bit to my previous posting. These small fish come from freshwater lakes, I believe. They are very similar to the fish we would call "smelt."

During the season of Lent, charales are sold all over Mexico and used in just about everything that would normally use ground or shredded beef, because beef cannot be eaten during the Lenten fasting period if you are an observant Roman Catholic.